I feel worthless..

My boyfriend and I have been together past 2 years. It is sort of a long distance relationship, we live about 3 hours away from each other. Just to give some more detail - I have known him since my undergrad years, we dated for less than a year while in school, then I had to move away so we were separated. I missed him while I was away from him, while he admits he hooked up with another girl. Almost three years later we meet again and find out we weren't living too far from each other. Be both wanted to give out lost and separated affection another fair shot. So we did. Presently, I am suffering with feeling very bad and worthless about myself. He says that he loves me and wants to spend his life with me. But I don't see that in his actions. He all his plans from me; he goes out with friends and I find out only when he returns. He has never introduced me to any of his friends till today. And I also know that most of them don't even know that he is dating me. He acts and thinks like all this fine. When I ask him why would hide your plans from me, he goes on to say things like it's his life and he can live it like he wants to OR he doesn't have to tell me everything he does. I feel broken, unworthy and used.. Is there anything I could possibly do about this?